STAT202-BASICS STATISTICS SPRING 2009 Meets MTH W 09:55AM 11:10AM 09:55AM 10:55AM ROOM AND B-12 Instructor: Elsa Naser Office Hours: M & Th 3:30P - 5:30P Gray 226 Tel: (202)885-3109 E-mail: enaser@american.edu OR If my office hours conflict with your schedule, feel free to ask me for a special appointment. Text: MOORE, S. David, McCABE, P. George, and CRAIG, A. Bruce. Introduction to the Practice of Statistics, 6th Edition, Freeman and Company, New York. Topics to be covered: Classification of data, sampling, averages, dispersion, probability, frequency distributions, confidence intervals, tests of significance, simple regression, and correlation. Course Objectives: This course will enable you to: 9 learn the vocabulary that statisticians use to express their ideas; represent data correctly in tables and graphs; to calculate some common statistics; 9 demonstrate understanding of statistical hypothesis testing and confidence interval including its logic and procedures; understand proper use and interpretation of statistics 9 Understand when to use each of the statistics we study. STAT202-BASICS STATISTICS Grading: Your grade will be determined on the basis of: (1) Ten Homework (2% each) (2) Three Exams (one of the worst will be dropped): (15 % each) (3) Four Lab Assignment: (5% each) (4) Class Participation: (10 %) (5) Final Exam: (20%) SCALE: A 93-100 C+ 75-79 A- 90-92 C 70-74 B+ 87-89 C- 65-69 B 84-86 D 55-64 B- 80-83 F <55 Software: The STATCRUNCH/EXCEL statistics package is recommended for this course. StatCrunch is now up and running. Here is the link to it.http://statcrunch.american.edu/. The passcode is "eagle". Student may also use other software with which they are familiar (SAS, EXCEL, MINITAB). Limited assistance with software is available in Hurst Hall computer labs. You also need to have graphing calculator such as TI-83 or 84. The department has a limited number of calculators that can be borrowed for a refundable cash deposit and a nominal user’s fee. If interested, go to Gray Hall 103 right away (phone: x3120, x3124). THE MATH/STAT LAB: The Lab is located in Gray 110 (phone: x3729). No appointment is necessary. The hours of operation are as follows: M through Th: 11 AM - 8 PM, F: 11 AM - 3 PM Saturday: Closed, Sunday: 3 PM - 8 PM. STAT202-BASICS STATISTICS IMPORTANT ADVICE • I will be using Blackboard to communicate with you and to post documents and links. Make sure your AU email is configured to receive my messages. • There will be a weekly homework set that is due on Th. These will be posted on course blackboard each week on Sunday. The two lowest homework scores will be dropped before determining your homework grade. • All exams are open textbook. When you study you do not need to memorize formulas, rather focus on understanding the concept and the logic behind each concept. • There are absolutely no make-ups available for exams. A make-up will be considered, only in the case of serious emergency (and documentation will be required). • The office hours are “open-door”. You do not need appointments to come in. The hours are specifically allocated so that I will be in my office, doing nothing else but answering questions related to Stat202. You can also schedule a meeting with me if you cannot come during the regularly scheduled office hours. • Lab Assignments (Check the schedule below for due date): Every W I will present material after that material first has been covered in lectures, and based on that you will be assigned four lab assignments. Labs assignments primarily are intended to provide experience with the computational aspect of statistics, and facilitate performance on corresponding examination material. Academic Honesty in exams, quizzes and homework is taken very seriously and will not be tolerated. Please refer to http://www.american.edu/academics/integrity/index.htm. Special Needs: If you have a disability and might require accommodations in this course, please notify me with a letter from DSS or LS early in the semester so that we can make arrangements to address your needs. STAT202-BASICS STATISTICS Tentative Schedule Date Topics Due Dates Ch 1.1 − Displaying Distributions with Graphs 01/12 M 01/14 W 01/15 Th 01/21 W 01/22 Th Ch 1.3 - Density Curves and Normal Distribution 01/26 M Ch 2.1 & 2.2 −Scatterplots and Correlation 01/28 W 01/29 Th Ch 2.3 − Least-Squares Regression 02/02 M Ch 2.4 – Regression and Correlation 02/04 W 02/05 Th Ch 3.1 − Design of Experiments 02/09 M Ch 3.2 & 3.3 − Sampling Design; toward Statistical Inference 02/11 W Review and problem Solving 02/12 Th Will cover Chapters 1 -3 02/16 M Ch 4.1 & 4.2 − Randomness and Probability Model 02/18 W 02/19 Th Ch 4.4: Variances 02/23 M Ch 5.1 − Sampling Distributions for Counts 02/25 W Lab- Graphs Ch 1.2 – Displaying Distributions with Numbers Lab- Summary Stats Homework #1 Lab- Scatterplots& Correlation Lab- Regression Homework #2 Lab #1 Homework #3 Exam 1 No Lab. Instead we will cover Ch 4.3 − Random Variables and Expected Value Homework #4 Lab – Binomial STAT202-BASICS STATISTICS 02/26 Th Ch 5.1 − Sampling Distribution for proportions 03/02 M Ch 5.2 − Sampling Distribution of the Sample Mean 03/04 W 03/05 Th Covers Chapters 4 and 5 03/16 M Ch 6.1 - Introduction on Inference- Estimation with Confidence 03/18 W 03/19 Th Ch 6.2 − Tests of Significance 03/23 M Ch 6.3 & 6.4 − Use and abuse of tests, Type I & Type II error 03/25 W 03/26 Th Ch7.1 − 03/30 M T-test Contd. 04/01 W 04/02 Th Covers Chapter 6 and Section 1 of Chapter 7 04/06 M Ch 7.1 − 04/08 W 04/09 Th Ch 7.2 − Comparing Two Means: Z-test 04/13 M Ch 7.2 − Two-sample T-test 04/15 W 04/16 Th Ch 8.1 − Inference of a Single Proportion 04/20 M Ch 8.2 − Comparing two Proportions 04/22 W 04/23 Th 04/27 M 04/30 Th Homework #5 Review and Problem solving Exam 2 Lab – Z Interval Lab – Z Test Inference for the mean of population when σ is unknown Homework #6 Lab #2 Homework #7 Review and Problem Solving Exam 3 Matched pair T-test Lab – t Test Lab –Two Independent Sample Lab –Sample proportion Finish Chapter 8 Homework #8 Lab#3 Homework #9 Lab #4 Homework #10 Review and Problem Solving Final Exam from 08:30A – 11:00A: Covers Chapter 7.2 and Chapter 8